滚轮编码模组

Abstract

本实用新型公开了一种滚轮编码模组，包括：基座、滚轮、转动块、切换机构；滚轮转动装接于基座，通过滚轮转动触发编码模块输出信号；滚轮的相对两侧均设置有转动块，转动块转动安装于基座，转动块设置有朝向滚轮侧面设置的凸台，两转动块通过复位弹簧连接；切换机构安装于基座，切换机构包括推杆，推杆的底端设置有锥面，转动块在复位弹簧的作用下与锥面相抵接，推杆可相对基座升降，从而改变锥面与转动块相接的部分的宽度，以带动转动块转动而改变凸台与滚轮侧面的接触状态。通过上述的设置，简化了可实现自由度调节的滚轮模组的结构，而且保证了使用过程中的稳定性和平衡性。

Claims

1. A roller encoding module, characterized in that, include: Base (1); Roller (2), which is rotatably mounted on the base (1), and the rotation of the roller (2) triggers the output signal of the encoding module; Rotating blocks (3), the rotating blocks (3) are provided on both sides of the roller (2), the rotating blocks (3) are rotatably mounted on the base (1), the rotating blocks (3) are provided with bosses (31) facing the side of the roller (2), and the two rotating blocks (3) are connected by a return spring (34); A switching mechanism (4) is installed on the base (1). The switching mechanism (4) includes a push rod (43). The bottom end of the push rod (43) is provided with a conical surface (433). The rotating block (3) abuts against the conical surface (433) under the action of the return spring (34). The push rod (43) can rise and fall relative to the base (1), thereby changing the width of the part of the conical surface (433) that contacts the rotating block (3), so as to drive the rotating block (3) to rotate and change the contact state between the boss (31) and the side of the roller (2).

2. The roller encoder module of claim 1, wherein, The boss (31) is disposed at one end of the rotating block (3), and the other end of the rotating block (3) is connected to the reset spring (34). The rotating block (3) is provided with a rotating hole (33), and the rotating block (3) is rotatably mounted on the base (1) by inserting a connector into the rotating hole (33) and the hole (132) of the base (1).

3. The roller encoder module of claim 2, wherein, A locking post (32) is provided at the opposite end of the rotating block (3), and the end of the return spring (34) is sleeved on the locking post (32).

4. The roller encoding module of any one of claims 1-3, wherein, The roller (2) has circumferentially arranged teeth (21) on its side surface, and grooves are formed between each tooth (21). When the boss (31) abuts against the side surface of the roller (2), the boss (31) contacts the tooth (21) and the groove, so that the roller (2) performs ratchet rolling.

5. The roller encoding module of any one of claims 1-3, wherein, The switching mechanism (4) further includes: a button (41) and a claw sleeve (42). The claw sleeve (42) is mounted on the base (1) corresponding to the push rod (43). The button (41) is slidably mounted inside the claw sleeve (42), with the top end of the button (41) exposed outside the base (1). The push rod (43) is slidably connected inside the claw sleeve (42), and the top end of the push rod (43) is positioned facing the button (41). A first elastic element (413) is provided between the button (41) and the push rod (43). The push rod (43) is provided with a locking tooth (432) on its periphery and a second elastic element (43) that abuts against the rotating block (3). 4) The claw sleeve (42) is provided with a first slot (421) and a second slot (422) corresponding to the locking tooth (432). The first slot (421) and the second slot (422) are different in length. When the button (41) drives the push rod (43) through the first elastic element (413), the locking tooth (432) switches between the first slot (421) and the second slot (422) under the action of the second elastic element (434) to change the position of the push rod (43), thereby changing the width of the part of the cone surface (433) that connects with the rotating block (3), and thus driving the rotating block (3) to rotate.

6. The roller encoder module of claim 5, wherein, The bottom end of the button (41) is provided with a drive tooth (411), and the top end of the push rod (43) is provided with a force-receiving tooth (431) corresponding to the drive tooth (411). When the button (41) drives the push rod (43) through the first elastic element (413), the drive tooth (411) abuts against the force-receiving tooth (431) to make the push rod (43) rotate, thereby driving the locking tooth (432) to switch between the first locking groove (421) and the second locking groove (422).

7. The roller encoder module of claim 5, wherein, The inner wall of the claw sleeve (42) is provided with a sliding groove (423), and a slider (412) is provided on the periphery of the button (41) corresponding to the sliding groove (423). The button (41) is slidably mounted in the claw sleeve (42) by sliding the slider (412) into the sliding groove (423).

8. The roller encoder module of claim 5, wherein, The push rod (43) has a mounting cavity (430) at its top end, and a portion of the first elastic element (413) is located in the mounting cavity (430).

9. The roller encoding module according to any one of claims 2-3, characterized in that, The base (1) includes: a seat body (11), which is provided with a receiving cavity (110) for installing the switching mechanism (4), a wheel groove (111) for mounting the roller (2), and a rotating groove (112) for rotatably connecting the rotating shaft of the roller (2).

10. The roller encoder module of claim 9, wherein, The base (1) further comprises a bottom cover (13) connected with the seat body (11) to define a space for mounting the rotating block (3), the hole (132) is arranged on the bottom cover (13), and the bottom cover (13) is further provided with a lifting hole (130), and the push rod (43) can be lifted relative to the lifting hole (130).

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