Linkage safety gear shifting mechanism

Abstract

The utility model provides a linkage safety gear shifting mechanism which comprises a first L-shaped plate and a second L-shaped plate, the outer portion of the first L-shaped plate is rotationally connected with a first stop lever which swings longitudinally, and the inner side of the second L-shaped plate is rotationally connected with a second stop lever which swings transversely. A stepped plate is arranged on the side, close to the second stop lever, in the first L-shaped plate, a limiting plate is slidably connected to the stepped plate, and a plurality of limiting grooves surrounding the second stop lever to limit swing of the second stop lever are formed in the limiting plate. A traction assembly connected with the limiting plate and pulling the limiting plate to move in the front-back direction is arranged on the side, close to the step plate, of the first L-shaped plate. The linkage safety gear shifting mechanism stops after the second gear swings left and right by a certain gear, the first gear swings from back to front to be linked with the traction assembly, the traction assembly acts on the limiting plate to enable the limiting plate to slide along the step plate, the limiting groove in the limiting plate surrounds the second gear, and the gear shifting phenomenon of the second gear is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear mechanism technical field, concretely relates to a linkage safety gear shifting mechanism. BACKGROUND

[0002] In the prior art, the gear shifting mechanism of the prior art will appear to drop the gear after the gear is engaged, which is usually due to the fact that the design of the gear shifting mechanism is not precise enough, or the gear shifting mechanism is not equipped with an effective limiting mechanism, or the limiting structure is designed unreasonably, and thus the swing range of the gear lever cannot be accurately limited. And due to the lack of sufficient locking mechanism to ensure that the gear position can be stably maintained after being engaged, the gear lever is likely to be displaced when the gear lever is subjected to vibration or the operator operates with improper force, which leads to unstable gear position and thus causes the problem of gear drop. SUMMARY

[0003] The utility model provides a linkage safety gear shifting mechanism, solve the problem that the gear lever is likely to be displaced when the gear lever is subjected to vibration or the operator operates with improper force, which leads to unstable gear position and thus causes the problem of gear drop.

[0004] The technical scheme of the utility model is as follows:

[0005] A linkage safety gear shifting mechanism, comprising an L-shaped plate one and an L-shaped plate two, the outside of the L-shaped plate one is rotationally connected with a longitudinally swinging gear lever one, and the inside of the L-shaped plate two is rotationally connected with a transversely swinging gear lever two.

[0006] The inside of the L-shaped plate one is provided with a stepped plate on the side close to the gear lever two, the stepped plate is slidingly connected with a limiting plate, a plurality of limiting grooves are formed in the limiting plate to surround the gear lever two and limit the swing thereof, and the side of the limiting plate away from the limiting grooves is provided with a side plate.

[0007] Further, the side plate slides along the step low platform of the stepped plate, and the limiting plate slides along the step high platform of the stepped plate.

[0008] Further, the back of the limiting plate is provided with a back plate, the L-shaped plate two is provided with a slot, the back plate is adapted in the slot and slides along the slot, and the back plate is located behind the stepped plate.

[0009] Further, the utility model also comprises a transmission assembly, the transmission assembly comprises a sliding shaft fixed on the back plate, the outside of the sliding shaft is slidingly connected with a guide cylinder, and the bottom of the guide cylinder is fixed with the step low platform of the stepped plate.

[0010] Further, the traction assembly comprises a connecting rod one rotatably connected to the L-shaped plate one through a rotating shaft, a connecting rod two hinged to a side of the connecting rod one away from the rotating shaft, and a traction shaft rotatably connected to a side of the connecting rod two away from the connecting rod one.

[0011] One end of the traction shaft is fixed to the stop lever one, and the other end is fixed to the end of the sliding shaft through the side plate.

[0012] The technical scheme provided by the present application has the beneficial effects of:

[0013] The linkage safety gear shifting mechanism stops after the stop lever two swings to a certain gear, the stop lever one swings forward to link the traction assembly, the traction assembly acts on the limiting plate, the limiting plate slides along the stepped plate, the limiting groove on the limiting plate surrounds the outside of the stop lever two, and the stop lever two is prevented from gear shifting. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Fig. 1 It is a schematic diagram of the linkage safety gear shifting mechanism of the present application.

[0016] Fig. 2 It is an exploded schematic diagram of the linkage safety gear shifting mechanism of the present application.

[0017] In the figure: 10 is an L-shaped plate one, 11 is a stepped plate; 20 is an L-shaped plate two, 21 is a slot; 30 is a stop lever one, 31 is a swing shaft one; 40 is a stop lever two, 41 is a swing shaft two; 50 is a traction assembly, 51 is a rotating shaft, 52 is a connecting rod one, 53 is a connecting rod two, 54 is a traction shaft; 60 is a limiting plate, 61 is a back plate, 62 is a limiting groove, 63 is a through hole, 64 is a side plate; 70 is a transmission assembly, 71 is a guide cylinder, 72 is a sliding shaft. DETAILED DESCRIPTION

[0018] The technical scheme of the present application will be described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0019] REFERENCE Figs. 1-2A linkage safety gear shifting mechanism includes L-shaped plate one 10 and L-shaped plate two 20, the outer side of L-shaped plate one 10 is rotatably connected with a longitudinal swing gear lever one 30, and the inner side of L-shaped plate two 20 is rotatably connected with a transverse swing gear lever two 40; the inner side of L-shaped plate one 10 close to the side of gear lever two 40 is provided with a stepped plate 11, the stepped plate 11 is slidably connected with a limiting plate 60, a plurality of limiting grooves 62 are formed in the limiting plate 60 to surround and limit the swing of gear lever two 40, and the side of L-shaped plate one 10 close to the stepped plate 11 is provided with a traction assembly 50 connected with the limiting plate 60 and capable of driving the limiting plate 60 to move along the front and back directions.

[0020] By arranging the stepped plate 11 in the inner side of L-shaped plate one 10 and slidably connecting the limiting plate 60 with the stepped plate 11, the swing of gear lever two 40 is surrounded and limited by the limiting grooves 62 on the limiting plate 60, so that gear lever two 40 can be stably kept at a predetermined position after gear shifting, and displacement and gear dropping caused by vibration or improper operation are avoided. The design of the traction assembly 50 enables the swing of gear lever one 30 to drive the limiting plate 60 to slide along the stepped plate 11, further enhancing the stability and safety of gear shifting.

[0021] When gear lever two 40 is operated to a certain gear position and stops swinging, the longitudinal swing of gear lever one 30 drives the limiting plate 60 to slide along the stepped plate 11 through the traction assembly 50. The limiting grooves 62 on the limiting plate 60 move and surround gear lever two 40, limiting the further swing of gear lever two 40, and ensuring the stability of the gear position. This linkage mechanism not only improves the accuracy of gear shifting, but also reduces the risk of gear dropping caused by improper operation or external interference through physical limitation, thereby realizing a more safe and reliable gear shifting mechanism.

[0022] In some embodiments, the side of the limiting plate 60 away from the limiting grooves 62 is provided with a side plate 64, the side plate 64 slides along the low step of the stepped plate 11, and the limiting plate 60 slides along the high step of the stepped plate 11. The side of the limiting plate 60 is provided with the side plate 64, which allows the side plate 64 to slide along the low step of the stepped plate 11, and the limiting plate 60 itself slides along the high step of the stepped plate 11. This structure not only provides the independent sliding ability of the limiting plate 60 on the two different height steps, but also enhances the stability and limiting effect of the gear shifting mechanism. The arrangement of the side plate 64 helps to provide additional support and guidance during gear shifting, ensuring that the limiting plate 60 can accurately slide along the high step of the stepped plate 11, thereby more effectively limiting the swing of gear lever two 40.

[0023] When the shift lever one 30 is operated, its longitudinal swing will drive the limiting plate 60 to slide along the high step of the stepped plate 11 through the traction assembly 50. At the same time, the side plate 64 slides at the low step of the stepped plate 11, providing stable support and guidance for the limiting plate 60. This double-step sliding mechanism ensures that the limiting plate 60 can be accurately moved to the outside of the shift lever two 40.

[0024] In some embodiments, the back of the limiting plate 60 is provided with a back plate 61, and the L-shaped plate two 20 is provided with a slot 21, the back plate 61 is adapted in the slot 21 and slides along it; the back plate 61 is located behind the stepped plate 11. The back plate 61 on the back of the limiting plate 60 is designed to fit and slide in the slot 21 on the L-shaped plate two 20, which provides a stable sliding path for the limiting plate 60 on the L-shaped plate two 20. The sliding function of the back plate 61 allows the limiting plate 60 to move more smoothly during shifting to adapt to the swing limiting requirements of the shift lever two 40. In addition, the design of the back plate 61 behind the stepped plate 11 helps to provide additional support when the limiting plate 60 slides, ensuring accurate positioning of the limiting plate 60 on the stepped plate 11, thereby improving the stability and reliability of the shifting mechanism.

[0025] The cooperation of the back plate 61 and the slot 21 provides a stable sliding platform for the limiting plate 60. When the back plate 61 slides in the slot 21, it ensures that the limiting plate 60 moves smoothly and accurately. The sliding of the back plate 61 not only helps to stabilize the positioning of the limiting plate 60 on the stepped plate 11, but also further limits the movement range of the limiting plate 60 by cooperating with the slot 21, preventing unnecessary deviation during shifting.

[0026] In some embodiments, a transmission assembly 70 is also included, which includes a sliding shaft 72 fixed on the back plate 61, and a guide cylinder 71 slidingly connected to the outside of the sliding shaft 72, the bottom of the guide cylinder 71 is fixed at the low step of the stepped plate 11. This design ensures that the limiting plate 60 slides more smoothly on the stepped plate 11, while providing a stable guiding mechanism to prevent the limiting plate 60 from deviating or jamming during operation.

[0027] The sliding shaft 72 on the back plate 61 guides the guide cylinder 71 to slide along the low step of the stepped plate 11. The bottom of the guide cylinder 71 is fixed, providing a stable guiding effect to ensure that the limiting plate 60 can slide accurately along the stepped plate 11. This design not only improves the accuracy and stability of shifting, but also reduces the risk of shifting out of gear due to improper operation or external interference through physical limitation, thereby realizing a more secure and reliable shifting mechanism.

[0028] In some embodiments, the traction assembly 50 includes a connecting rod one 52 rotatably connected to the outside of the L-shaped plate one 10 through a rotating shaft 51, a connecting rod two 53 hingedly connected to the side of the connecting rod one 52 away from the rotating shaft 51, and a traction shaft 54 rotatably connected to the side of the connecting rod two 53 away from the connecting rod one 52; one end of the traction shaft 54 is fixed to the outside of the stop lever one 30, and the other end is fixed to the end of the sliding shaft 72 through the side plate 64.

[0029] The traction assembly 50 realizes the effective linkage between the stop lever one 30 and the sliding shaft 72 through the combination of the connecting rod one 52, the connecting rod two 53, and the traction shaft 54. The connecting rod one 52 is rotatably connected to the L-shaped plate one 10 through the rotating shaft 51, the connecting rod two 53 is hingedly connected to the connecting rod one 52, and the traction shaft 54 is rotatably connected to the connecting rod two 53 and slides in the side plate 64. One end of the traction shaft 54 is fixed to the stop lever one 30, and the other end is fixed to the sliding shaft 72 through the side plate 64. Such a design ensures that the swing of the stop lever one 30 can be accurately transmitted to the sliding shaft 72, thereby driving the limiting plate 60 to slide along the stepped plate 11 and achieving effective limiting of the stop lever two 40.

[0030] The longitudinal swing of the stop lever one 30 is transmitted through the traction assembly 50. The connecting rod one 52 rotates around the rotating shaft 51, driving the connecting rod two 53 to swing, and then making the traction shaft 54 rotate. The rotation of the traction shaft 54 causes the swing of the stop lever one 30 to be transmitted to the sliding shaft 72, and the rotation of the sliding shaft 72 makes the back plate 61 slide in the slot 21 of the L-shaped plate two 20.

[0031] In some embodiments, the side plate 64 is provided with a through hole 63 adapted to the outside of the traction shaft 54. The through hole 63 provided on the side plate 64 is used to adapt to the outside of the traction shaft 54. This design allows the traction shaft 54 to pass through the side plate 64, thereby realizing the stable connection between the traction shaft 54 and the side plate 64. The existence of the through hole 63 not only ensures the fixation of the traction shaft 54 on the side plate 64, but also allows the traction shaft 54 to rotate freely within the through hole 63 and slide along it, which helps to reduce friction and wear, improve the durability of the gear shifting mechanism, and improve the smoothness of operation.

[0032] The swing of the stop lever one 30 is transmitted to the traction shaft 54 through the traction assembly 50. The traction shaft 54 passes through the through hole 63 on the side plate 64 and rotates and slides within the through hole 63, which not only ensures the stability of the connection between the traction shaft 54 and the side plate 64, but also allows the traction shaft 54 to rotate freely on the side plate 64.

[0033] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A linked safety shift mechanism characterized by, The L-shaped plate one (10) is externally rotatably connected with a longitudinal swing stop lever one (30), and the L-shaped plate two (20) is internally rotatably connected with a transverse swing stop lever two (40); The L-shaped plate one (10) is internally provided with a stepped plate (11) close to the stop lever two (40), the stepped plate (11) is slidably connected with a limiting plate (60), the limiting plate (60) is provided with a plurality of limiting grooves (62) surrounding the stop lever two (40) to limit the swing of the stop lever two (40); the L-shaped plate one (10) is provided with a traction assembly (50) connecting the limiting plate (60) and pulling the limiting plate (60) to move in the front and back directions.

2. The linked safety shift mechanism of claim 1, wherein, The limiting plate (60) is provided with a side plate (64) away from the limiting grooves (62), the side plate (64) slides along the low step of the stepped plate (11), and the limiting plate (60) slides along the high step of the stepped plate (11).

3. The linked safety shift mechanism of claim 1, wherein, The back of the limiting plate (60) is provided with a back plate (61), the L-shaped plate two (20) is provided with a slot (21), the back plate (61) is fitted in the slot (21) and slides along the slot (21); the back plate (61) is located behind the stepped plate (11).

4. The linked safety shift mechanism of claim 3, wherein, The transmission assembly (70) includes a sliding shaft (72) fixed on the back plate (61), the outside of the sliding shaft (72) is slidably connected with a guide cylinder (71), and the bottom of the guide cylinder (71) is fixed with the low step of the stepped plate (11).

5. The linked safety shift mechanism of claim 4, wherein, The traction assembly (50) includes a connecting rod one (52) rotatably connected with the outside of the L-shaped plate one (10) through a rotating shaft (51), the connecting rod one (52) is hingedly connected with a connecting rod two (53) away from the rotating shaft (51), and the connecting rod two (53) is rotatably connected with a traction shaft (54) away from the connecting rod one (52); One end of the traction shaft (54) is fixed with the outside of the stop lever one (30), and the other end is fixed with the end of the sliding shaft (72) through the side plate (64).

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