Roller transmission device based on vehicle-mounted steering wheel switch

Abstract

The utility model relates to the field of steering wheel switches, in particular to a roller transmission device based on a vehicle-mounted steering wheel switch, which comprises a mounting shell, a rotating shaft, a roller and a circuit board, the roller sleeves the rotating shaft, the rotating shaft is rotatably arranged on the mounting shell, one end of the rotating shaft is integrally provided with a transmission gear, the transmission gear is in meshing transmission with an impeller, and the circuit board is provided with an optocoupler. The impeller is matched with the optocoupler in an induction mode, a through hole for the rotating shaft to penetrate through is formed in the roller, a positioning rib structure is arranged on the abutting face of the rotating shaft and the through hole and comprises positioning rails arranged on the rotating shaft and positioning ribs arranged on the inner wall of the through hole, and the positioning rails are integrally arranged at the two ends, in the vertical direction of the transmission gear, of the rotating shaft. The positioning rib and the positioning rail are inserted for limiting, the rotating shaft and the roller synchronously rotate, an elastic buckle is integrally arranged on the rotating shaft, and a clamping block matched with the elastic buckle for use is arranged on the inner wall of the through hole. The utility model has the beneficial effects that the integrated design is adopted, the structure is stable, and definite hand feeling feedback and angle limiting functions can be provided for a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to steering wheel switch technical field, specifically to a kind of based on vehicle-mounted steering wheel switch gyro wheel transmission device. BACKGROUND

[0002] In the traditional steering wheel switch design, the shaft and the switch are usually assembled as two independent parts, and the circular hole design at both ends is usually in the form of opening. This design not only increases the complexity of assembly, but also may cause inaccurate size control. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a steering wheel switch gyro wheel structure with integrated design, stable structure and clear tactile feedback and angle limiting function for users in view of the deficiencies of the prior art.

[0004] To achieve the above purpose, the following technical scheme is adopted: a gyro wheel transmission device based on vehicle-mounted steering wheel switch, comprising a mounting shell, a shaft, a gyro wheel and a circuit board, the gyro wheel is sleeved on the shaft, the shaft is rotatably arranged on the mounting shell, one end of the shaft is integrally provided with a transmission gear, the transmission gear is engaged with a impeller, the circuit board is provided with an optical coupler, the impeller rotates with the transmission gear and cooperates with the optical coupler, a through hole is formed in the gyro wheel for the shaft to pass through, a positioning rib structure is arranged on the contact surface between the shaft and the through hole, the positioning rib structure comprises a positioning rail arranged on the shaft and a positioning rib arranged on the inner wall of the through hole, the positioning rail is integrally arranged on the shaft at the vertical direction of the transmission gear, the positioning rib is inserted and limited with the positioning rail to make the shaft and the gyro wheel rotate synchronously, an elastic buckle is integrally arranged on the shaft, and a clamping block is arranged on the inner wall of the through hole to cooperate with the elastic buckle.

[0005] The shaft is designed in one piece, and the transmission gear, the positioning rail and the elastic buckle are integrally injection molded thereon, which reduces the number of parts compared with conventional gyro wheels, shortens the cooperation size chain, and achieves the effects of more economical cost, more controllable process and more stable quality. Two groups of positioning rails can be arranged on the outer peripheral surface of the shaft cooperating with the through hole, and the positioning rib is inserted and limited with each group of positioning rails to make the shaft and the gyro wheel rotate synchronously. The elastic buckle also has a protrusion, and the shape of the protrusion and the clamping block is triangular or trapezoidal. When the inclined surfaces of the protrusion and the clamping block touch, the elastic buckle is first pressed inward, and then pops out to make the flat surfaces of the protrusion and the clamping block abut, thereby preventing the shaft from being pulled out of the gyro wheel, increasing the connection stability of the shaft and the gyro wheel, and making the shaft and the gyro wheel into an indivisible whole. At the same time, the transmission gear engages to drive the impeller to rotate, and interacts with the optical coupler on the circuit board to realize the on-off control of the photoelectric signal.

[0006] The switch roller transmission device based on the vehicle-mounted steering wheel can be further provided with a gear wheel integrated with the rotating shaft at one end away from the transmission gear, a plurality of gear grooves are arranged in the circumferential direction of the gear wheel, a spring corresponding to the position of the gear wheel is arranged in the mounting shell, a steel ball is arranged at the top of the spring, the spring applies a tendency to the steel ball to move towards the gear groove, a groove corresponding to the position of the gear wheel is arranged in the mounting shell, one end of the spring is in abutment with the bottom surface of the groove, and the other end is in abutment with the steel ball, and the groove surface of the gear groove is an arc surface and is engaged with the steel ball.

[0007] By adopting the technical scheme, the spring and the steel ball are assembled with the rotating shaft to realize hand feeling and angle limiting, the gear groove of the gear wheel is in contact with the steel ball during rotation, obvious rotation jerk feedback can be generated, over-rotation of the roller during operation is avoided, accurate rotation positioning is easy, and the roller adjustment is more convenient and fast.

[0008] The switch roller transmission device based on the vehicle-mounted steering wheel can be further provided with a gear wheel integrated with the rotating shaft at one end away from the transmission gear, a plurality of gear grooves are arranged in the circumferential direction of the gear wheel, a spring corresponding to the position of the gear wheel is arranged in the mounting shell, a steel ball is arranged at the top of the spring, the spring applies a tendency to the steel ball to move towards the gear groove, a groove corresponding to the position of the gear wheel is arranged in the mounting shell, one end of the spring is in abutment with the bottom surface of the groove, and the other end is in abutment with the steel ball, and the groove surface of the gear groove is an arc surface and is engaged with the steel ball.

[0009] By adopting the technical scheme, the gear wheel rotates along with the transmission gear, the number of the blades on the impeller can be 4, the blades rotate along with the rotating shaft, the blades of the impeller and the photocoupler are correspondingly matched, signal on-off is clear, and adjustment is sensitive.

[0010] The switch roller transmission device based on the vehicle-mounted steering wheel can be further provided with a gear wheel integrated with the rotating shaft at one end away from the transmission gear, a plurality of gear grooves are arranged in the circumferential direction of the gear wheel, a spring corresponding to the position of the gear wheel is arranged in the mounting shell, a steel ball is arranged at the top of the spring, the spring applies a tendency to the steel ball to move towards the gear groove, a groove corresponding to the position of the gear wheel is arranged in the mounting shell, one end of the spring is in abutment with the bottom surface of the groove, and the other end is in abutment with the steel ball, and the groove surface of the gear groove is an arc surface and is engaged with the steel ball.

[0011] By adopting the technical scheme, the two-end circular holes in the prior art are designed as open holes, the circular hole in the application is designed in a whole circle form, the shaking amount of the roller is more easily controlled, and the roller is kept stable during use.

[0012] The switch roller transmission device based on the vehicle-mounted steering wheel can be further provided with a gear wheel integrated with the rotating shaft at one end away from the transmission gear, a plurality of gear grooves are arranged in the circumferential direction of the gear wheel, a spring corresponding to the position of the gear wheel is arranged in the mounting shell, a steel ball is arranged at the top of the spring, the spring applies a tendency to the steel ball to move towards the gear groove, a groove corresponding to the position of the gear wheel is arranged in the mounting shell, one end of the spring is in abutment with the bottom surface of the groove, and the other end is in abutment with the steel ball, and the groove surface of the gear groove is an arc surface and is engaged with the steel ball.

[0013] By adopting the technical scheme, the Z-direction positioning rib on the inner shell is matched with the Z-direction positioning groove of the outer shell to move in the Z direction, the Z direction is the movement along the Z axis direction, that is, the movement when the roller is pressed.

[0014] The utility model will be further explained in detail in combination with the drawings and embodiments. DRAWINGS

[0015] Figure 1 The utility model discloses a perspective view.

[0016] Figure 2 The utility model discloses a Figure 1 The utility model discloses a

[0017] Figure 3 The utility model discloses a Figure 2 The utility model discloses a

[0018] Figure 4 The utility model discloses a Figure 2 The utility model discloses a

[0019] Figure 5 The utility model discloses a Figure 2 The utility model discloses a

[0020] Figure 6 The utility model discloses a Figure 2 The utility model discloses a

[0021] Figure 7 The utility model discloses a Figure 2 The utility model discloses a

[0022] Figure 8 The utility model discloses a Figure 1 The utility model discloses a

[0023] Figure 9 The utility model discloses a Figure 5 The utility model discloses a

[0024] In the drawing: 1, install the shell body; 2, the pivot; 3, the gyro wheel; 4, the circuit board; 5, the spring; 6, the steel ball; 7, the locating rib structure; 11, install the inner shell; 12, install the outer shell; 21, transmission gear; 22, the impeller; 23, the gear wheel; 24, the elastic buckle; 25, the clamping block; 31, the through -hole; 41, the photo -coupler; 71, the locating rail; 72, the locating rib; 111, the round hole; 112, Z direction locating rib; 113, Z direction locating groove; 114, the round hole; 221, driven gear; 222, the vane; 231, the gear slot. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0026] Embodiment: a kind of based on vehicle steering wheel switch roller transmission device as shown in Figures 1-9 , Figure 1 and Figure 2 As shown, including installation shell 1, rotating shaft 2, roller 3 and circuit board 4, the circuit board 4 is equipped with photoelectric coupler 41, the roller 3 is sleeved on the rotating shaft 2, the rotating shaft 2 is rotatably arranged on the installation shell 1, the installation shell 1 includes installation inner shell 11 and installation outer shell 12, the rotating shaft 2, roller 3 are arranged on the installation inner shell 11, as shown in Figure 4 , installation inner shell 11 is equipped with the round hole 114 for the rotating shaft 2 both ends rotatably arranged, the circuit board 4 is arranged on the installation outer shell 12, as shown in Figure 3 , Figure 6 and Figure 9As shown, the rotating shaft 2 is integrally provided with a transmission gear 21 at one end, the transmission gear 21 is engaged with an impeller 22, the impeller 22 includes a driven gear 221 engaged with the transmission gear 21 and four blades 222 arranged in a circumferential direction, rotation of the impeller 22 enables the blades 222 to be inductively coupled with the photoelectric signal of the photo-coupler 41, the blades 222 rotate with the transmission gear and are inductively coupled with the photo-coupler, the rotating shaft 2 is integrally provided with a gear wheel 23 at the end away from the transmission gear 21, the gear wheel 23 is circumferentially provided with a plurality of gear grooves 231, the mounting inner shell 11 is provided with a spring 5 corresponding to the position of the gear wheel 23, the top of the spring 5 is provided with a steel ball 6, the spring 5 applies a tendency to the steel ball 6 to move towards the gear groove 231, the mounting inner shell 11 is provided with a groove 111 corresponding to the position of the gear wheel 23, one end of the spring 5 abuts the bottom surface of the groove 111 and the other end abuts the steel ball 6, the groove surface of the gear groove 231 is arc-shaped and fits the steel ball 6, after the spring 5, the steel ball 6 and the rotating shaft 2 are assembled, the hand feeling and angle limiting are realized, the roller 3 is provided with a through hole 31 for the rotating shaft 2 to pass through, the rotating shaft 2 is provided with a positioning rib structure 7 at the abutting surface with the through hole 31, the positioning rib structure 7 includes a positioning rail 71 provided on the rotating shaft 2 and a positioning rib 72 provided on the inner wall of the through hole 31, the positioning rail 71 is integrally provided on the outer circumferential surface of the rotating shaft 2 matched with the through hole, the positioning rib 72 is inserted and limited with the positioning rail 71 and enables the rotating shaft 2 to rotate synchronously with the roller 3, two sets of positioning rails 71 can be arranged on the outer circumferential surface of the rotating shaft 2, the positioning rib 72 is respectively inserted and limited with each set of positioning rails 71 to enable the rotating shaft 2 to rotate synchronously with the roller 3. The rotating shaft 2 is integrally provided with an elastic buckle 24, the rotating shaft is integrally designed, the transmission gear 21, the positioning rail 71, the elastic buckle 24 and the gear wheel 23 are integrally injection molded thereon, compared with the conventional roller 3, the number of parts is reduced, the matching dimension chain is shortened, the cost is more economical, the process is more controllable and the quality is more stable, the inner wall of the through hole 31 is provided with a clamping block 25 matched with the elastic buckle 24, the elastic buckle 24 also has a protruding block, the shapes of the protruding block and the clamping block 25 are triangular or trapezoidal, when the inclined surfaces of the two are in contact, the elastic buckle 24 is first pressed and retracted, then the protruding block is popped out to abut the flat surface of the clamping block 25, thereby preventing the rotating shaft 2 from being pulled out of the roller 3, increasing the connection stability of the rotating shaft 2 and the roller 3, so that the rotating shaft 2 and the roller 3 are assembled into an indivisible whole, as Figure 4 and Figure 5 As shown, the mounting inner shell 11 is provided with a Z-direction positioning rib 112 outside, the mounting outer shell 12 is provided with a Z-direction positioning groove 113 inside, the Z-direction positioning rib 112 can move in the Z-direction in the Z-direction positioning groove 113, the Z-direction movement is movement along the Z-axis, that is, movement when pressing the roller.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included within the scope of the present application.

Claims

1. A vehicle-mounted steering wheel switch roller transmission device, comprising a mounting shell (1), a rotating shaft (2), a roller (3) and a circuit board (4), the roller (3) is sleeved on the rotating shaft (2), and the rotating shaft (2) is rotationally arranged on the mounting shell (1), characterized in that: The rotating shaft (2) is integrally provided with a transmission gear (21) at one end, the transmission gear (21) is engaged with an impeller (22), the circuit board (4) is provided with an optical coupler (41), the impeller (22) rotates with the transmission gear (21) and is inductively matched with the optical coupler (41), the rotating shaft (2) is provided with a positioning rib structure (7) at the abutting surface with the through hole (31), the positioning rib structure (7) comprises a positioning rail (71) provided on the rotating shaft (2) and a positioning rib (72) provided on the inner wall of the through hole (31), the positioning rail (71) is integrally provided on the outer circumferential surface of the rotating shaft (2) matched with the through hole, the positioning rib (72) is inserted and limited with the positioning rail (71) and makes the rotating shaft (2) rotate synchronously with the roller (3), the rotating shaft (2) is integrally provided with an elastic buckle (24), and the inner wall of the through hole (31) is provided with a clamping block (25) matched with the elastic buckle (24). ​ 2. A steering wheel switch roller transmission device based on vehicle according to claim 1, characterized in that: The rotating shaft (2) is integrally provided with a gear wheel (23) at the end away from the transmission gear (21), the gear wheel (23) is circumferentially provided with a plurality of gear grooves (231), the mounting shell (1) is provided with a spring (5) corresponding to the position of the gear wheel (231) in the inside, the top of the spring (5) is provided with a steel ball (6), the spring (5) applies a tendency to the steel ball (6) moving towards the gear groove (231), the mounting shell (1) is provided with a groove (111) corresponding to the position of the gear wheel (231) in the inside, one end of the spring (5) abuts against the bottom surface of the groove (111), and the other end abuts against the steel ball (6), the groove surface of the gear groove (231) is an arc surface and is matched with the steel ball (6).

3. A steering wheel switch roller transmission device for a vehicle according to claim 2, characterized in that: The impeller (22) comprises a driven gear (221) engaged with the transmission gear (21) and a plurality of blades (222) arranged circumferentially, and the rotation of the impeller (22) makes the blades (222) inductively realize the on-off control of photoelectric signals with the optical coupler (41).

4. A steering wheel switch roller transmission device according to any one of claims 1 to 3, characterized in that: The mounting shell (1) comprises a mounting inner shell (11) and a mounting outer shell (12), the rotating shaft (2) and the roller (3) are arranged on the mounting inner shell (11), the mounting inner shell (11) is provided with a circular hole (114) for rotatably arranging the two ends of the rotating shaft (2), and the circuit board (4) is arranged on the mounting outer shell (12).

5. A steering wheel switch roller drive assembly according to claim 4, wherein: The mounting inner shell (11) is provided with a Z-direction positioning rib (112) outside, the mounting outer shell (12) is provided with a Z-direction positioning groove (113) inside, and the Z-direction positioning rib (112) can move in the Z-direction in the Z-direction positioning groove (113).

Images